To block traffic between a subset of endpoints in an EPG based on specific VM attributes and the rest of the VMs in that EPG, the correct set of actions would involve setting "Allow Microsegmentation" under the EPG VMM Domain Association to "True" and setting "Intra-EPG Isolation" to "Enforced" for both the EPG and the uSeg EPG. This configuration ensures that microsegmentation is allowed and that intra-EPG isolation is enforced, effectively blocking the specified traffic.
References:
* The Implementing and Operating Cisco Data Center Core Technologies (DCCOR) course provides insights into the implementation of data center technologies, including network, compute, storage network, automation, and security1.
* The Cisco Community articles on VMM Integration & Troubleshooting and ACI VMM integration provide practical guidance and troubleshooting tips for integrating VMM domains with Cisco ACI23.
* For detailed procedures and additional information, the configuration guides and training materials available on Cisco's official website are valuable resources